Fosi Audio MC331 24V Tube Integrated Bluetooth Amp

The Fosi Audio MC331 is an all-in-one DAC, amplifier, preamplifier, and headphone amplifier designed to simplify your audio setup without compromising sound quality. Combining multiple functions in a compact unit, it offers flexibility for a wide range of listening environments.

Equipped with support for Bluetooth, USB, optical, coaxial, and RCA inputs, the MC331 ensures compatibility with various audio sources such as computers, smartphones, and CD players. Switching between sources is seamless with the included remote control.

The integrated vacuum tubes and VU meter provide both visual appeal and a warm, analog-inspired sound character. This combination adds a retro aesthetic while enhancing the listening experience with smooth tonal qualities.

Despite its compact size, the MC331 delivers up to 105W per channel at 4Ω, making it capable of driving bookshelf speakers effectively. With additional pre-out and headphone output options, it supports versatile system configurations including 2.1 setups.

Features
All-In-One DAC Amplifier Preamplifier And Headphone Amplifier
Bluetooth USB Optical Coaxial And RCA Inputs
105W Per Channel Output At 4Ω
Built-In Vacuum Tubes For Warm Sound
VU Meter With Retro Design
Pre-Out For 2.1 System Integration
3.5mm Headphone Output
Remote Control With Bass And Treble Adjustment
Replaceable Tubes For Sound Customization

Compatibility
Passive Speakers 4Ω To 8Ω
Headphones With 3.5mm Jack
Bluetooth Enabled Devices
USB Optical Coaxial And RCA Audio Sources

Specifications
Power Output: 105W x2 @4Ω
Inputs: Bluetooth RCA USB Coaxial Optical
Outputs: Passive Speaker Output Pre-Out 3.5mm Headphone
THD: ≤0.03%
SNR: ≥100dB
Bluetooth Codecs: SBC AAC
Impedance: 4-8 Ohm
Power Supply: 24V/4.5A

Dimensions & Weight
Dimensions: 25.4 × 5.1 × 6.9 cm

In The Box
MC331 Power Amplifier
24V/4.5A Power Adapter
Remote Control
User Manual